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-rw-r--r--libswscale/rgb2rgb_template.c105
1 files changed, 45 insertions, 60 deletions
diff --git a/libswscale/rgb2rgb_template.c b/libswscale/rgb2rgb_template.c
index 3da2b0b2aa..98e3a1472e 100644
--- a/libswscale/rgb2rgb_template.c
+++ b/libswscale/rgb2rgb_template.c
@@ -7,20 +7,20 @@
* palette & YUV & runtime CPU stuff by Michael (michaelni@gmx.at)
* lot of big-endian byte order fixes by Alex Beregszaszi
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
@@ -240,27 +240,6 @@ static inline void rgb24to15_c(const uint8_t *src, uint8_t *dst, int src_size)
}
}
-/*
- * I use less accurate approximation here by simply left-shifting the input
- * value and filling the low order bits with zeroes. This method improves PNG
- * compression but this scheme cannot reproduce white exactly, since it does
- * not generate an all-ones maximum value; the net effect is to darken the
- * image slightly.
- *
- * The better method should be "left bit replication":
- *
- * 4 3 2 1 0
- * ---------
- * 1 1 0 1 1
- *
- * 7 6 5 4 3 2 1 0
- * ----------------
- * 1 1 0 1 1 1 1 0
- * |=======| |===|
- * | leftmost bits repeated to fill open bits
- * |
- * original bits
- */
static inline void rgb15tobgr24_c(const uint8_t *src, uint8_t *dst,
int src_size)
{
@@ -270,9 +249,9 @@ static inline void rgb15tobgr24_c(const uint8_t *src, uint8_t *dst,
while (s < end) {
register uint16_t bgr = *s++;
- *d++ = (bgr & 0x1F) << 3;
- *d++ = (bgr & 0x3E0) >> 2;
- *d++ = (bgr & 0x7C00) >> 7;
+ *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);
+ *d++ = ((bgr&0x03E0)>>2) | ((bgr&0x03E0)>> 7);
+ *d++ = ((bgr&0x7C00)>>7) | ((bgr&0x7C00)>>12);
}
}
@@ -285,9 +264,9 @@ static inline void rgb16tobgr24_c(const uint8_t *src, uint8_t *dst,
while (s < end) {
register uint16_t bgr = *s++;
- *d++ = (bgr & 0x1F) << 3;
- *d++ = (bgr & 0x7E0) >> 3;
- *d++ = (bgr & 0xF800) >> 8;
+ *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);
+ *d++ = ((bgr&0x07E0)>>3) | ((bgr&0x07E0)>> 9);
+ *d++ = ((bgr&0xF800)>>8) | ((bgr&0xF800)>>13);
}
}
@@ -301,13 +280,13 @@ static inline void rgb15to32_c(const uint8_t *src, uint8_t *dst, int src_size)
register uint16_t bgr = *s++;
#if HAVE_BIGENDIAN
*d++ = 255;
- *d++ = (bgr & 0x7C00) >> 7;
- *d++ = (bgr & 0x3E0) >> 2;
- *d++ = (bgr & 0x1F) << 3;
+ *d++ = ((bgr&0x7C00)>>7) | ((bgr&0x7C00)>>12);
+ *d++ = ((bgr&0x03E0)>>2) | ((bgr&0x03E0)>> 7);
+ *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);
#else
- *d++ = (bgr & 0x1F) << 3;
- *d++ = (bgr & 0x3E0) >> 2;
- *d++ = (bgr & 0x7C00) >> 7;
+ *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);
+ *d++ = ((bgr&0x03E0)>>2) | ((bgr&0x03E0)>> 7);
+ *d++ = ((bgr&0x7C00)>>7) | ((bgr&0x7C00)>>12);
*d++ = 255;
#endif
}
@@ -323,13 +302,13 @@ static inline void rgb16to32_c(const uint8_t *src, uint8_t *dst, int src_size)
register uint16_t bgr = *s++;
#if HAVE_BIGENDIAN
*d++ = 255;
- *d++ = (bgr & 0xF800) >> 8;
- *d++ = (bgr & 0x7E0) >> 3;
- *d++ = (bgr & 0x1F) << 3;
+ *d++ = ((bgr&0xF800)>>8) | ((bgr&0xF800)>>13);
+ *d++ = ((bgr&0x07E0)>>3) | ((bgr&0x07E0)>> 9);
+ *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);
#else
- *d++ = (bgr & 0x1F) << 3;
- *d++ = (bgr & 0x7E0) >> 3;
- *d++ = (bgr & 0xF800) >> 8;
+ *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);
+ *d++ = ((bgr&0x07E0)>>3) | ((bgr&0x07E0)>> 9);
+ *d++ = ((bgr&0xF800)>>8) | ((bgr&0xF800)>>13);
*d++ = 255;
#endif
}
@@ -376,9 +355,9 @@ static inline void yuvPlanartoyuy2_c(const uint8_t *ysrc, const uint8_t *usrc,
const uint8_t *yc = ysrc, *uc = usrc, *vc = vsrc;
for (i = 0; i < chromWidth; i += 2) {
uint64_t k = yc[0] + (uc[0] << 8) +
- (yc[1] << 16) + (vc[0] << 24);
+ (yc[1] << 16) + (unsigned)(vc[0] << 24);
uint64_t l = yc[2] + (uc[1] << 8) +
- (yc[3] << 16) + (vc[1] << 24);
+ (yc[3] << 16) + (unsigned)(vc[1] << 24);
*ldst++ = k + (l << 32);
yc += 4;
uc += 2;
@@ -440,9 +419,9 @@ static inline void yuvPlanartouyvy_c(const uint8_t *ysrc, const uint8_t *usrc,
const uint8_t *yc = ysrc, *uc = usrc, *vc = vsrc;
for (i = 0; i < chromWidth; i += 2) {
uint64_t k = uc[0] + (yc[0] << 8) +
- (vc[0] << 16) + (yc[1] << 24);
+ (vc[0] << 16) + (unsigned)(yc[1] << 24);
uint64_t l = uc[1] + (yc[2] << 8) +
- (vc[1] << 16) + (yc[3] << 24);
+ (vc[1] << 16) + (unsigned)(yc[3] << 24);
*ldst++ = k + (l << 32);
yc += 4;
uc += 2;
@@ -635,10 +614,13 @@ static inline void uyvytoyv12_c(const uint8_t *src, uint8_t *ydst,
* others are ignored in the C version.
* FIXME: Write HQ version.
*/
-void rgb24toyv12_c(const uint8_t *src, uint8_t *ydst, uint8_t *udst,
+void ff_rgb24toyv12_c(const uint8_t *src, uint8_t *ydst, uint8_t *udst,
uint8_t *vdst, int width, int height, int lumStride,
- int chromStride, int srcStride)
+ int chromStride, int srcStride, int32_t *rgb2yuv)
{
+ int32_t ry = rgb2yuv[RY_IDX], gy = rgb2yuv[GY_IDX], by = rgb2yuv[BY_IDX];
+ int32_t ru = rgb2yuv[RU_IDX], gu = rgb2yuv[GU_IDX], bu = rgb2yuv[BU_IDX];
+ int32_t rv = rgb2yuv[RV_IDX], gv = rgb2yuv[GV_IDX], bv = rgb2yuv[BV_IDX];
int y;
const int chromWidth = width >> 1;
@@ -649,9 +631,9 @@ void rgb24toyv12_c(const uint8_t *src, uint8_t *ydst, uint8_t *udst,
unsigned int g = src[6 * i + 1];
unsigned int r = src[6 * i + 2];
- unsigned int Y = ((RY * r + GY * g + BY * b) >> RGB2YUV_SHIFT) + 16;
- unsigned int V = ((RV * r + GV * g + BV * b) >> RGB2YUV_SHIFT) + 128;
- unsigned int U = ((RU * r + GU * g + BU * b) >> RGB2YUV_SHIFT) + 128;
+ unsigned int Y = ((ry * r + gy * g + by * b) >> RGB2YUV_SHIFT) + 16;
+ unsigned int V = ((rv * r + gv * g + bv * b) >> RGB2YUV_SHIFT) + 128;
+ unsigned int U = ((ru * r + gu * g + bu * b) >> RGB2YUV_SHIFT) + 128;
udst[i] = U;
vdst[i] = V;
@@ -661,18 +643,21 @@ void rgb24toyv12_c(const uint8_t *src, uint8_t *ydst, uint8_t *udst,
g = src[6 * i + 4];
r = src[6 * i + 5];
- Y = ((RY * r + GY * g + BY * b) >> RGB2YUV_SHIFT) + 16;
+ Y = ((ry * r + gy * g + by * b) >> RGB2YUV_SHIFT) + 16;
ydst[2 * i + 1] = Y;
}
ydst += lumStride;
src += srcStride;
+ if (y+1 == height)
+ break;
+
for (i = 0; i < chromWidth; i++) {
unsigned int b = src[6 * i + 0];
unsigned int g = src[6 * i + 1];
unsigned int r = src[6 * i + 2];
- unsigned int Y = ((RY * r + GY * g + BY * b) >> RGB2YUV_SHIFT) + 16;
+ unsigned int Y = ((ry * r + gy * g + by * b) >> RGB2YUV_SHIFT) + 16;
ydst[2 * i] = Y;
@@ -680,7 +665,7 @@ void rgb24toyv12_c(const uint8_t *src, uint8_t *ydst, uint8_t *udst,
g = src[6 * i + 4];
r = src[6 * i + 5];
- Y = ((RY * r + GY * g + BY * b) >> RGB2YUV_SHIFT) + 16;
+ Y = ((ry * r + gy * g + by * b) >> RGB2YUV_SHIFT) + 16;
ydst[2 * i + 1] = Y;
}
udst += chromStride;
@@ -838,7 +823,7 @@ static void yuyvtoyuv420_c(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
int lumStride, int chromStride, int srcStride)
{
int y;
- const int chromWidth = -((-width) >> 1);
+ const int chromWidth = FF_CEIL_RSHIFT(width, 1);
for (y = 0; y < height; y++) {
extract_even_c(src, ydst, width);
@@ -858,7 +843,7 @@ static void yuyvtoyuv422_c(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
int lumStride, int chromStride, int srcStride)
{
int y;
- const int chromWidth = -((-width) >> 1);
+ const int chromWidth = FF_CEIL_RSHIFT(width, 1);
for (y = 0; y < height; y++) {
extract_even_c(src, ydst, width);
@@ -876,7 +861,7 @@ static void uyvytoyuv420_c(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
int lumStride, int chromStride, int srcStride)
{
int y;
- const int chromWidth = -((-width) >> 1);
+ const int chromWidth = FF_CEIL_RSHIFT(width, 1);
for (y = 0; y < height; y++) {
extract_even_c(src + 1, ydst, width);
@@ -896,7 +881,7 @@ static void uyvytoyuv422_c(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
int lumStride, int chromStride, int srcStride)
{
int y;
- const int chromWidth = -((-width) >> 1);
+ const int chromWidth = FF_CEIL_RSHIFT(width, 1);
for (y = 0; y < height; y++) {
extract_even_c(src + 1, ydst, width);
@@ -935,7 +920,7 @@ static av_cold void rgb2rgb_init_c(void)
yuv422ptouyvy = yuv422ptouyvy_c;
yuy2toyv12 = yuy2toyv12_c;
planar2x = planar2x_c;
- rgb24toyv12 = rgb24toyv12_c;
+ ff_rgb24toyv12 = ff_rgb24toyv12_c;
interleaveBytes = interleaveBytes_c;
vu9_to_vu12 = vu9_to_vu12_c;
yvu9_to_yuy2 = yvu9_to_yuy2_c;
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